Trenchless Pipe Repair Technology and Relative Suggestion

This paper presents some advantages of pipeline repairing using trenchless technology and analysis is made on the feature of pipeline corrosion and its influence factors, mainly introduces five kinds of trenchless technologies, such as lining, spraying, local repair, chemical slurry injection and original curing, and relative suggestion is put forward. The article describes the installation process for the case of trenchless pipeline repairing by original curing technology of gas pipeline.